Ruling · Buddha Pūrṇimā · 1928

Friday 4 May

Determinatein Baoding, under the Rashtriya Panchang method. Clear of every threshold by 459 minutes.

Decide it for

BaodingDelhiKolkataSingaporeSydneyJersey City

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two middays

One ghaṭī is 24 minutes. Madhyāhna is 1 ghaṭikā either side of midday.

Midday of Friday 4 May

Taken. The only midday Pūrṇimā reaches.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

48 of 48 minutes covered

Midday of Saturday 5 May

Pūrṇimā is absent from madhyāhna. Not taken.

madhyāhna begins 11:51  12:39 madhyāhna ends
11:0311:2711:5112:1512:3913:0313:27

0 of 48 minutes covered

Pūrṇimā presentMadhyāhna, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Pūrṇimā runs from 01:42 on Fri 4 May to 04:12 on Sat 5 May.

    1928-05-03T17:41:46Z → 1928-05-04T20:11:41Z

  2. 02

    Kāla

    Madhyāhna is 1 ghaṭikā either side of midday: 11:51–12:39 on the 4th, 11:51–12:39 on the 5th.

    madhyahna: midday-pm-1-ghatika · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Pūrṇimā must be present during madhyāhna. It covers 48 of 48 minutes on the 4th and 0 of 48 on the 5th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102

  4. 04

    Tie-break

    Only one midday qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 27565 s

  5. 05

    Ruling

    Buddha Pūrṇimā, Baoding, 1928: Friday 4 May.

    confidence: determinate

Say it like this

In Baoding, Buddha Pūrṇimā 1928 falls on Friday 4 May. Pūrṇimā runs from 01:42 on Fri 4 May to 04:12 on Sat 5 May and covers all of madhyāhna that midday.

ahargana.org/baoding/festivals/1928/buddha-purnima · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingFri 4 May
Ahargaṇa, classicalDisc centre, no refractionFri 4 May
compat-drikpanchangComparison profileFri 4 May
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/buddha-purnima · ruleset 2026.3-draft

Month
Vaiśākha, amānta
Pakṣa · aṅga
Śukla · Pūrṇimā
Kāla
Madhyāhna
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 102

“S 15 Sampat gauri vrata (paraviddha), Phuladola (Bengal & Orissa) (paraviddha), Gandhesvari puja (Bengal) (purvaviddha), Buddha purnima, Vaisakhi purnima.” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 102.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlacePūrṇimāMadhyāhna 3rdCoveredMadhyāhna 4thCoveredRuled
Los Angeles09:42 → 12:1211:2648 min11:2646 min3 May
Chicago12:42 → 15:1212:2430 min12:2448 min4 May
Jersey City13:42 → 16:1212:290 min12:2948 min4 May
Port of Spain13:42 → 16:1211:390 min11:3948 min4 May
London18:42 → 21:1212:340 min12:3448 min4 May
Durban19:42 → 22:1211:290 min11:2848 min4 May
Dubai21:42 → 00:1211:520 min11:5248 min4 May
Delhi23:12 → 01:4211:540 min11:5448 min4 May
Kolkata23:12 → 01:4211:100 min11:0948 min4 May
Singapore00:42 → 03:1211:370 min11:3748 min4 May
Sydney03:42 → 06:1211:280 min11:2848 min4 May
Suva05:42 → 08:1211:390 min11:3948 min4 May
Profile · tradition
pac-rp@2026.1 · smarta
Rule
buddha-purnima@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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